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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2014
Accounting Policies [Abstract] |
Estimated Fair Value Of Financial Instruments | The following table presents estimated fair values of financial instruments at December 31, 2014 and 2013.
| December 31,
| 2014 |  | 2013
| (Amounts in thousands)
Assets |  |  |
Investments | $ | 3,403,822 |  |  | $ | 3,158,312 |
Total return swaps | $ | 0 |  |  | $ | 1,650 |
Liabilities |  |  |
Total return swaps | $ | 4,025 |  |  | $ | 0 |
Equity contracts | $ | 194 |  |  | $ | 140 |
Secured notes | $ | 140,000 |  |  | $ | 140,000 |
Unsecured note | $ | 150,000 |  |  | $ | 50,000 |
Direct Premium Attributable By Segment | The Company's annual direct premiums written by lines of insurance were:
| Year Ended December 31,
| 2014 |  | 2013 |  | 2012
| (Amounts in thousands)
Private passenger automobile | $ | 2,223,073 |  |  | $ | 2,165,557 |  |  | $ | 2,140,531 |
Homeowners | 374,436 |  |  | 340,013 |  |  | 318,295 |
Commercial automobile | 135,928 |  |  | 104,689 |  |  | 74,655 |
Other lines | 119,732 |  |  | 127,213 |  |  | 122,239 |
Total | $ | 2,853,169 |  |  | $ | 2,737,472 |  |  | $ | 2,655,720 |

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